18106570944 has 252 divisors, whose sum is σ = 65862101448. Its totient is φ = 4702924800.

The previous prime is 18106570939. The next prime is 18106570949. The reversal of 18106570944 is 44907560181.

It is an interprime number because it is at equal distance from previous prime (18106570939) and next prime (18106570949).

It is a tau number, because it is divible by the number of its divisors (252).

It is a super-2 number, since 2×18106570944² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18106570944.

It is not an unprimeable number, because it can be changed into a prime (18106570949) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 281304 + ... + 339624.

Almost surely, 2^18106570944 is an apocalyptic number.

18106570944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18106570944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32931050724).

18106570944 is an abundant number, since it is smaller than the sum of its proper divisors (47755530504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18106570944 is a wasteful number, since it uses less digits than its factorization.

18106570944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58364 (or 58344 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 18106570944 in words is "eighteen billion, one hundred six million, five hundred seventy thousand, nine hundred forty-four".